ackers



F. 0. ACKERS." METHOD OF MANUFACTURING WIRE GLOBES. APPLICATION FILEDJUNE I2. I9I8.

1,321, 11 0. Patented Nov. 11,1?19.

avweutoz I ZEflchers,

Wibmem UNITED sir-Arne PATENT OFFICE.

FRANK O. ACKERS, OF COLUMBUS, OHIO, ASSIGNOR TO THE SAFETY WIRE GASGLOBE.

COMPANY, OF COLUMBUS, OHIO, A CORPORATION OF OHIO.

METHOD OF MANUFACTURING WIRE GLOBES.

Specification of Letters Patent.

Patented Nov. 11,1919.

Application filed June 12, 1918. Serial No. 239,667.

Columbus, in the county of Franklin and State of Ohio, have inventedcertain new and useful Improvements in Methods of Manufacturing WireGlobes, of which the following is a specification.

This invention relates to an improved method of fabricating and roducingforaminated articles of manu acture, and has particular reference to animproved method of manufacturing and treating wire netting to produce asubstantial and light radiating protective globe or covering for use inconnection with incandescent mantles, whereby a globe of superiorstrength and durability will be provided, combining lightness in weightand excellent light diffusing characteristics.

One of the main objects of the invention resides in an improved methodof producing wire mesh globes, which consists substantially in subecting a body of wire netting to a shaping process, in order to producea globe of proper contour, and in applying an enamel coating to theglobe so as to impart a light diffusing color thereto, and at the fromsuch ingredients that it will congeal or solder around'the joints formedby the intersecting wire strands, so that the latter will be securelybonded together and a substantial and rigid structure produced.

For a further disclosure of the invention reference is to be hadqto thefollowing description and to the accompanying drawing, forming a part ofthis specification, and in which drawing similar characters of referencedenote like parts throughout its several views.

In the drawing:

Figure 1 is a blank view of a sheet of wire netting from which the globeembodying the'features of this invention is formed,

Fig. 2 discloses the manner of subjecting the nettlng to a die to .formits globular contour,

Fig. 3 is a view of the completed globe, Fig. 4 is an enlarged fraentary sectional view, disclosing the joint formed by an intersectingpair of wire strands, and illustrating the applicrtion and efi'ect ofthe enameling and solidifying coating ap-- plied thereto.

ing I process,

same time to form the coating.

WVith regard to the details of carrying out my improved method, a sheet1 of a suitable size of wire netting, shown in Fig. 1, is submitted tothe action of a rotatable die structure 2 which, as will be observedupon reference to Fig. 2, shapes the sheet 1 to assume the globular orother desired contour shown. Subsequently to the shaping action of thedie structure, the protruding ends 3 of the globe are severed to roundofi or finish the edges of the globe, so that an even circular edge willbe provided. To this edge there is suitably connected an annulus 4, inorder to reinforce said edge and to permit the globe to be convenientlyconnected with any suitable form of mounting (not shown) for purposes ofapplication and practical usage in connection with a lamp structure.

Coming now to .a more important phase of the invention,

I provide a method of treating this globe, subsequent to the shaptoincrease its durability, rigidity and general strength, and at the sametime to color or coat the same in order to enhance its light diffusingproperties. To this end, I preferably apply a paint, enamel or any ot ersuitable mobile coating to the strands of the globe. This is preferablyaccomplished by dipping a shaped globe into a coating having the generalproperties and consistency of paint, and then through the use ofcompressed air the surplus coating is pneumatically blown off of theglobe leaving a coat of required thickness thereon. Thls coat ispermitted to dry and harden on the wire strands and annulus 4 in anysuitable manner, a bake oven being capable of being advantageouslyemployed to hasten this drying process.-

By thus treating the wire strands of the globe the following resultsobtain among others; First, the joints formed by the intersecting wirestrands are firmly, rigidly and securely united, this overcomes theflexibility of the globe, resulting from the shaping process, andrenders the same substantial, stiff and capable of withstanding suchstresses and strains as are incident to normal use without losing itsdesired or proper contour. At this juncture, it is advisable to statethat when the sheet of wire netting 1 is subjected to the shapingprocess, the strands of wire, which were firmly united during theinitial process of manufacturing and electro-plating the nettin 1, arebent or distorted from their origina positions to produce the globularcontour shown, thus breaking the ori inal joints and rendering the bodydecide ly plastic and responsive to shape altering pressures. However,through the application of the coating described the intersectingstrands are again bonded, in the manner suggested by Fig. 4, toreestablish a firm, solid and substantial union therebetween, and to 4thereby restore and enhance the general rigidity of the globe structure.And, secondly, the coating set forth contains a suitable pigment whichpreferably colors the globe to produce a white enamel efiect, wherebywhen the globe is in use the strands comprising the same permit light tobe diffused and protected in substantially the same manner as andwithout the objections of a frosted glass globe.

From the foregoing description it will be and economy in manufacture,capable of protecting an inclosed mantle from undue drafts,'air currentsor other damagin and disturbing influences and which will 1n no wayinterfere with or retard light difl'usion.

I claim:

The improved method of producing wire mesh globes consisting in shapinga body of wire netting to assume a globular contour, and in subsequentlyapplying a bonding coating of light diffusing properties to said nettingto again. unite the intersecting strands thereof which were dislocatedduring the shaping process.

In testimony whereof I affix my signature.

FRANK O. ACKERS.

